Draw the figure of voltaic cell and explain its construction. Explain flow of current in conductor through this cell.
A voltaic cell is an electrochemical cell that uses a chemical reaction to produce electrical energy.
As shown in figure, take solution of dilute sulphuric acid (H2SO4) in a beaker. Dip one copper plate and another zinc plate in the solution in such a way that they do not touch each other. These two plates get electrically charged due to the process between these two plates and the solution. The positive charge at copper plate and negative charge at zinc plate get deposited. Thus, electric potential difference is produced between two plates. Positive charge plate is called positive pole of battery or anode and the negatively charged plate is called negative pole of battery or cathode.
Such a simple battery was invented by Italian Scientist Alexandro Volte (1745-1827). Therefore, it is called Volta’s Cell.
The electrons flow from cathode towards anode.